this post was submitted on 18 Jan 2024
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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world. About 1C of total warming. Second chart: about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability. Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases. About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

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The 1.5-degree climate goal may be ‘deader than a doornail,’ and scientists are bitterly divided over it (www.cnn.com)
submitted 9 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] ogler@lemmynsfw.com 12 points 9 months ago

it's idiotic of CNN to report this as like a scientific disagreement. this is a disagreement among scientists about what is politically feasible. so now status quo politicians get to use this as an arrow in their quiver to dispute the necessity of even aiming for a 1.5 degree target, as if the targets are beholden to the models, and not the other way around

[–] mambabasa@slrpnk.net 4 points 9 months ago

Even if 1.5°C has become impossible, and I do believe it is already, I'll still fight for it.

[–] Evil_Shrubbery@lemm.ee 4 points 9 months ago

Nobody is bitterly divided (that's just propaganda flair) ... apart from rich people and their various pets (politicians).